Thermodynamics

The first law of thermodynamics is a restatement of the

• Zeroth law of thermodynamics
• law of heat addition
• principle of entropy
• conservation of energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which is an example of decreasing entropy in a closed system?

• Boiling water

• Freezing water

• Cells in a body coming together

• Ice melting

Do molecules generally move faster at 45 C or 106 C?

• 45 C because molecules have more kinetic energy than in 106C

• 106 C because molecules have more kinetic energy than in 45C

• 106 C because molecules have less kinetic energy than in 45C

• 45C because molecules have less kinetic energy than in 106 C

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Whenever heat is added to a system, it transforms to an equal amount of some other form of energy describes which law of thermodynamics?

• 1st Law of thermodynamics

• 2nd Law of thermodynamics

• 3rd Law of thermodynamics

• 4th Law of thermodynamics

Tags

NGSS.HS-PS3-4

A microwave oven uses which of the following to heat foods.

• Microwave elves
• Radiation
• Convection
• Conduction

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-3

NGSS.MS-PS4-2

Carole owns a two story house with a heating and cooling unit on each floor. In the winter she mostly uses the downstairs unit because the volume of warm air __________ and __________ warming the whole house through __________.

• expands, rises, convection
• expands, sinks, conduction
• contracts, rises, conversion
• contracts, sinks, contraption

Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. 

• conduction
• convection
• radiation

Select the temperature in °F

• 90°F
• 100°F
• 40°F
• 30°F

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

NGSS.MS-PS3-5

The kinetic energy of the gas molecules would be _____ in a low temperature environment.

• much higher than expected

• the same as

• lower

• higher

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

When liquids turn into gases, molecules must _______.

• lose mass

• gain kinetic energy

• lose energy

• stay together as one strong unit of materials

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4